Question 7.3: An amplifier with negative feedback applied has an open-loop...
An amplifier with negative feedback applied has an open-loop voltage gain of 50, and one-tenth of its output is fed back to the input (i.e. β = 0.1). Determine the overall voltage gain with negative feedback applied.
The blue check mark means that this solution has been answered and checked by an expert. This guarantees that the final answer is accurate.
Learn more on how we answer questions.
Learn more on how we answer questions.
With negative feedback applied the overall voltage gain will be given by:
G=\frac{A_v}{1+\beta A_v}=\frac{50}{1+(0.1\times 50)} =\frac{50}{6} =8.33Related Answered Questions
Question: 7.9
Verified Answer:
First we need to construct the load line. The two ...
Question: 7.8
Verified Answer:
Since 2 V appears across R4, we can determine the ...
Question: 7.7
Verified Answer:
Re-arranging A_v=\frac{h_{fe}\times R_L}{h...
Question: 7.6
Verified Answer:
The equivalent circuit (with h_{re} [/late...
Question: 7.5
Verified Answer:
Re-arranging the formula, G=\frac{A_v}{1+\...
Question: 7.4
Verified Answer:
The new value of voltage gain will be given by:
[l...
Question: 7.2
Verified Answer:
The mid-band voltage gain corresponds with the fla...
Question: 7.1
Verified Answer:
(a) The voltage gain is calculated from:
A...